2010 Hyundai Genesis 3.8FACTORY OEM SERVICE PROCEDURE

DTC Code List

No. DTC CODE Description
1 B1987 Sub micom Failed
2 B1602 CAN ERR
3 B1603 CAN Communication Bus Off
4 B1988 ESCL BAT Short To BAT
5 B1989 ESCL GND Short To BAT
6 B1990 ESCL BAT Short To GND
7 B1991 IMMO TX Short To GND
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.